[RFC PATCH] binfmt_misc: add binfmt_misc_select tracepoint

Hi,

This is an RFC patch for a binfmt_misc_select tracepoint. The patch
was tested on v7.3-rc7, but I currently have limited computer access
and no usable SMTP setup, so I could not send it with git send-email.
I know patches should be inline; the patch is attached as
0001-binfmt_misc-select-tracepoint.patch, and I can resend it inline
once I have access to a suitable environment.